Converter.



A. F. s. BLAOKWO0D. CONVERTER.

APPLICATION FILED JULY 28,1910. 1,042 876, Patented Oct. 29, 1912.

s SHEETS-SHEET 1.

A.- F. S. BLAOKWOOD.

CONVERTER.

APPLICATION FILED JULY 28, 1910.

1 j 42; 7 Patented Oct. 29, 1912.

a SKEETSSHEBT 2;

Z flVjA i 0/0 Patnted 00a. 29, 1912:

A. F. S. BLAOKWOOD.

CONVERTER APPLICATION FILED JULY ZB, 1010 airnn'r CONVERTER.

ftpecification of Letters Patent. I

Patented Oct 29, 1912,.

a maun filed July as, 1910. Serial a 574,404.

To all whom it may concern:

Be it known that I, ALEXANDER F. S. Bnaonwoon, a citizen of the UnitedStates, residing at Detroit, in the county of Wayne, State of Michigan,have invented certain new and useful improvements in Converters, ofwhich the following is a description, reference being had to theaccompanying drawings, forming a part hereof.

My invention relates to Bessemer cone verters of thetype in which)provision is made for readily separating'the converter to affordconvenient access to the interior thereof for the purpose of repairingthe lining with which such converters are provided; and the objects ofmy invention are to provide a separable converter which may bereadily'separated and which requires no mechanism for efl'ecting theseparation of the parts thereofother than such as ordinarily forms apart of foundry equipment; to provide a separable converter in which theplane upon which the parts are separated passes through the locality atwlnch the maximum wear upon the lining of the con: verter occurs, sothatythe portions of the lining the more likely. to need repairs will beclose to the ends of the parts after they have been separated; and toprovide such further improvements in and relating to separableconverters as'will be hereina t closed and claimed.

\Vith the above enumerated objects in view my invention consists in theimproved separable Bessemer converter illustrated in the accompanyingdrawings, described in the following specification, and particularlyclaimed in the clauses of the concluding claim; and in such obviousmodifications ot' the converter illustrated and described. as will beobvious to one skilled in the art to which the invention relates.

In the drawings comprising three sheets: Figure 1 is a view showing aside elevation of my improved converter, one of the trunnions howeverbeing sectioned to SllO'VldwtllQ-w air supply passage'extendingtherethrough;

Fig. 2 1s a plan view of the lower part of the converter, the upper partbeing removed. Fig. 3 is a View showing a section taken upon a verticalplane indicated by the line 3 3 Fig. 2.

My improved-converter is made up of two parts, the lower part 1 beingsupported by a trunnion ring 3 rotatable in bearings at the upperends'of the pedestals 4: while the uphave become damaged and to needrepairs that 1s, 1n slole blown converters the zone er disper part 2 isseparable from the lower part so that it may be readily lifted therefromby means-of a crane, to WlllCll end it is provided with a plurality oflugs 5 to be engaged by lifting chains, it being thus obvious that nomechanism other-than a crane, which is a common and necessary. part offoundry .equlpment, is necessary to effect these-para:

tion of the parts. The featureof ready sep 3 aration of the parts bymeans of 'a crane re suits from the fact that. the plane upon which theparts are separable passes aht ve' the trunnion ring, thus dispensingwith such special apparatus as is commonly provided for manipulating thelower part ofsuch separable'converters as are separable upon a planelocated below the't'runnion ring; and the location of the lane ofseparation above the trunnion ring urt-herinore secures a sep aration ofthe parts at the annular belt or zone at which the converter lining issubjected to thefmaximum amount 0t wear and;

at the place where it is the more likely to above the plane of thetwyers which is in line with or sli htly above the direction which theblast rom the twyers takes as it passes through the molten metal land inwhich the heat of combustion .is highest; from which it will be obviousthat latter the parts-have been separated the portions of thelining'morelikely to need repairs will be at or near the ends of theparts and will consequently be readily accessible for the purpose ofrepair. Theplane upon which the two parts are separated being above the.

trunnion ring as stated, also coincides u 91'! proximately with theupper limit of the trunnion ring, as when the several'p'arts aredesigned and proportioned as contemplated by me a plane so located willdivide the converter at just about the place where the maximum amount ofwear is found tooceur.

This is found to be about seventeeninches above the center line of thetwyersjin a one ton converter. The dotted lines 6, Figs. 2 and3,j"1ndicate approximately the outline of thehmng of 195 the converter.

7 is the air supply .passa e extending through one of the trunnions ater which the air passes through a conduit 8 and into the converterthrough one or more passages gr 110 twyers 9.

10 1s a gear des1gned to be engaged by a ends thereof are slotted toreceive transverse worm whereby the converter may be rotated upon itstrunnions as is common in Bessemer converters. r

The trunnion ring 3 is preferably formed in sections as shown, and meansare provided for securing the upper and lower parts of the convertertogether; the same being shown as comprising a plurality of shackles 11pivotally secured to the trunnion ring at their lower ends, while theupper permit its lining to be repaired as will be understood. 4

Such being the construction of my improved converter, it will be obviousthat after removing the keys 12 and swinging the shackles 11 free from.the brackets 13 the upper part 2 of the converter may be lifted from thelower part 1 by means of a crane and chains engaging the lugs 5 and thesame placed upon suitable supports, the trunnions 14 of the upper partserving as supports for the same and permitting it to be moved into sucha position, angularly, as to enable the lining thereof to be readilyrepaired. The lower part 1 may obviously be likewise rotated upon itstrunnions to bring it in proper position to enable repairs to be made tothe lining. \Vhen thus separated. the portions of the lining of the twoparts the more likely to need repairs are readily accessible as aboveexplained; and the fact that the workman who is to make the repairs doesnot have to enter the converter to reach the locality where repairs areto be made, nor to reach far thereinto, cnablesre pairs to be made upona converter, when constructed in accordance with my invention, so hot asto positively preclude the entry of a person into the interiorthereof aswould be necessary if the portionpf the lining to be repaired wasremoved from the open end of the part to be repaired, it being 5possible to make repairs upon the liningof i my in'lproved converterafter the same has been given but a few hours inwhich to cool wvhereasfrom lif ,.n to eighteen hours are i interns commonly required for aconverter to become cool enough for a workman to enter into it to repairthe lining.

With a converter constructed in accord-\ ance with my invention as abovedi'sclosedl I am able to operate with a single converter where two ormore have heretofore been required for the reason that repairs to theconverter lining may be made without waiting for the converter to becomecool; whereas in pl ats using converters in which it is necessary toenter into the interior thereof in order to repair the lining, theconverters have to be given many times as long to cool, and a secondconverter will be necessary in order to maintain a continuous operationof the plant, before the first will have had time" to cool and berepaired. In .such plants it has heretofore been necessary to have atbest two, and often more converters, the individual, converters beingused in suc c-ession.

Having thus disclosed my invention and explained the advantages thereof,1 claim and desire to secure by Letters Patent 1. A converter comprisinga lower lined portion having twyers arranged to deliver air through theside, means for supporting and swinging the said lower portion; an upperlined portion detachably secured to the lower portion, the plane ofjuncture between the upper and lower portion coinciding with the planeof greatest wear of the lining of the converter which in a one tonconverter is about seventeen inches above the center of the twyers.

2. A converter comprising a lower lined portion having twyer s arrangedto deliver air through side, means for supporting and swinging the saidlower portion, an upper portion, detachably secured to lower portion,the plane of juncture between the upper and lower portion coincidingwith the plane of gre tst wear of the lining of the converter, which ina one ton converter is about seventeen inches above the center of thetwyers, means whereby the upper portion may be gripped to be removed,and trunnions secured to the upper portion whereby the same may besuitably 'n'iountcd after being detached and removed from the lowerportion.

This specification signed and witneswd this twenty seventh day of JulyA. 1). 19h).

ALEXANDER l. S'llltlilNtl lilnlOKlYOUl). in the presence of- R. F.ll'm'rmmwnx, JESSE l Mex nus.

